The Supreme Court's Grand Bench will examine two cases questioning whether Civil Code articles forcing married couples to choose a single surname and prohibiting only women from remarrying for six months violate the Constitution.
It will be the first time for the Supreme Court to rule on the constitutionality of such matters. The top court convenes its 15-member Grand Bench when it judges whether a law is constitutional or changes a legal precedent.
On both of the damages lawsuits under review, district and high courts have judged that the Civil Code provisions do not infringe on the Constitution and ruled in favor of the government.